Extracurricular laboratory: Synthetic route of 5334-39-4

The chemical industry reduces the impact on the environment during synthesis 3-Methyl-4-nitro-1H-pyrazole. I believe this compound will play a more active role in future production and life.

Application of 5334-39-4, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 5334-39-4, name is 3-Methyl-4-nitro-1H-pyrazole, This compound has unique chemical properties. The synthetic route is as follows.

To a stirred of solution of 3-methyl-4-nitro-lH-pyrazole (0.3 g, 2.4 mmol) in DMF (10 mL) was added potassium carbonate (0.4 g, 2.9 mmol) and 2-iodopropane (0.72 mL, 7.2 mmol). The solution was stirred at room temperature for 3 hours. The reaction mixture was poured into water (50 mL) and extracted into ether (4 x 30 mL). The combined ethereal extracts were dried (MgSO4) and the solvent removed under vacuum to give a pale yellow oil. Several purifications were performed via column chromatography (SiO2; 200 equiv. 100 % DCM) to give 1 -isopropyl-3 -methyl-4-nitropyrazole (11 mg, 93 % isomeric purity). This was combined with another batch (110 mg, purified identically).

The chemical industry reduces the impact on the environment during synthesis 3-Methyl-4-nitro-1H-pyrazole. I believe this compound will play a more active role in future production and life.